17 citations · 55 across the 19 of their papers we have counts for
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A construction of fractal surfaces with function scaling factors on a rectangular grid
Chol-Hui Yun, Hui-Chol Choi, Hyong-Chol O
A fractal surface is a set which is a graph of a bivariate continuous function. In the construction of fractal surfaces using IFS, vertical scaling factors in IFS are important one…
Conditions for Bifurcations in a Non-Autonomous Scalar Differential Equation
Sang-Mun Kim, Hyong-Chol O
In this paper are provided some sufficient conditions for a non autonomous scalar differential equation to have saddle node, transcritical and pitchfork bifurcations using higher o…
Construction of Recurrent Fractal Interpolation Surfaces with Function Scaling Factors and Estimation of Box-counting Dimension on Rectangular Grids
Chol-Hui Yun, Hui-Chol Choi, Hyong-Chol O
We consider a construction of recurrent fractal interpolation surfaces with function vertical scaling factors and estimation of their box-counting dimension. A recurrent fractal in…
Construction of Fractal Surfaces by Recurrent Fractal Interpolation Curves
Chol-hui Yun, Hyong-chol O., Hui-chol Choi
A method to construct fractal surfaces by recurrent fractal curves is provided. First we construct fractal interpolation curves using a recurrent iterated functions system(RIFS) wi…